1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sveticcg [70]
2 years ago
8

Determine the half-life of a nuclide that loses 38.0% of its mass in 407 hours. 590 hours 281 hours 291 hours 568 hour 204 hours

Physics
1 answer:
alexgriva [62]2 years ago
3 0

The half-life of a nuclide is 737 hrs

Let the initial mass of nuclide is N° = 100

The final mass of nuclide after 407 hours

= 100 - 38 = 62

The expression for decay constant is

λ = 1/t ln(N°/Nt)

Substitute the given values and calculate the decay constant as,

λ = 1/407hr ln(100/62)

λ = 9.4 x 10^-4/hr

Now, the half-life is calculated as,

t1/2 = 0.693/λ

= 0.693/9.4 x 10^-4/hr

t1/2 = 737 hrs

Hence, the half-life of a nuclide is 737 hrs

Learn more about Half-Life here:

brainly.com/question/25750315

#SPJ4

You might be interested in
If the same experiment is repeated in different parts of the world by different scientists,
Misha Larkins [42]
The answer is D) The outcome of the experiment will be non observable
3 0
3 years ago
Read 2 more answers
Explain the difference between speed and velocity and indicate if these are scalar or vector quantities
Natali5045456 [20]
Speed can never be negative because it does not depend in which direction the car moves whereas, velocity will change if a car turns from due North to East.
Quantities which can be described only by their magnitudes are called scalars and those which are described by both, magnitude and direction are vectors
3 0
3 years ago
Enter an expression in the box to Write the equation of the line perpendicular to y=-3x-1 that passes through the point (3,4).
Dafna11 [192]

Answer: -3x+13

Explanation:

4 0
3 years ago
Why might it be necessary to ignore some of the data points just before and just after the collision?
krek1111 [17]
We have no idea. We need to examine the experimental set-up. You've given us no information, except that there may have been some sort of collision.
7 0
3 years ago
During a testing process, a worker in a factory mounts a bicycle wheel on a stationary stand and applies a tangential resistive
Alex

Answer:

616.223684211 N

Explanation:

F_r = Resistive force on the wheel = 115 N

F = Force acting on sprocket

r_2 = Radius of sprocket = 4.75 cm

r_1 = Radius of wheel = 25 cm

Moment of inertia is given by

I=mr_1^2\\\Rightarrow I=1.7\times 0.25^2\\\Rightarrow I=0.10625\ kgm^2

Torque

\tau=I\alpha\\\Rightarrow \tau=0.10625\times 4.9\\\Rightarrow \tau=0.520625\ Nm

Torque is given by

\tau=Fr_2-F_rr_1\\\Rightarrow F=\dfrac{\tau+F_rr_1}{r_2}\\\Rightarrow F=\dfrac{0.520625+115\times 0.25}{0.0475}\\\Rightarrow F=616.223684211\ N

The force on the chain is 616.223684211 N

5 0
3 years ago
Other questions:
  • 20 cubic inches of a gas with an absolute pressure of 5 psi is compressed until it’s press reaches 10 psi. What is the new volum
    5·1 answer
  • Heat transfer between two substances is affected by specific heat and the
    14·2 answers
  • Convert 9.75 millimeters to centimeters.
    12·2 answers
  • supose at 20 degree celsius the resistance of Tungsten thermometer is 154.9. WHen placed in a particular solution , the resistan
    6·1 answer
  • One railroad car rolls towards another. Describe the properties of the first car that determine its momentum and how it would im
    10·1 answer
  • When light travels from a medium it moves faster in (such as air) to a medium it moves slower in (such as glass) its velocity de
    12·1 answer
  • Atoms of the same element with varying number of neutrons are called
    10·1 answer
  • A red laser beam goes from crown glass with refraction index n=1.3 to air (n=1) with an incident angle of 0.23 radians. What is
    8·1 answer
  • Join dua-odmb-pwp meet plßsssssss​
    12·1 answer
  • And I need help with seven and eight only I will appreciate it
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!